Forgings composed of alloy steel that have undergone a particular heat treatment procedure known as quenching are specialist metal components known as quenched alloy steel forgings. These forgings are excellent choices for a variety of applications since the alloy steel gains improved mechanical and performance qualities from this heat treatment.
Forgings composed of alloy steel that have undergone a particular heat treatment procedure called tempering are referred to as tempering alloy steel components. Their mechanical qualities are improved by the tempering heat treatment procedure, which qualifies them for uses requiring resilience to impact and durability.
Forgings made of alloy steel that have been quenched and tempered are specialty parts used to build pressure vessels that are intended to hold high-pressure liquids or gases. The alloy steel used to make these forgings undergoes a particular heat treatment procedure that includes quenching and tempering in order to provide the material the mechanical qualities and performance characteristics needed for pressure vessel applications. Their resilience to extreme temperatures, pressures, and corrosive conditions, coupled with their toughness and impact resistance, renders them crucial to the integrity and functionality of these vessels.
Under IS standard IS 12145: 1987, all quenched and tempered alloy steel forgings intended for use in pressure vessels are now required to be part of the ISI Certification Scheme.
This standard outlines the criteria for quenched and tempered alloy steel forgings intended for pressure vessels, including those within the reactor system. It provides detailed manufacturing specifications for various components, including vessel closures, flanges, shells, tube sheets, heads, rings and similar parts.
This product cannot be exported, imported, or sold in the Indian consumer market without bearing the ISI Mark.
Indian Standards Institute, or ISI was renamed the Bureau of Indian Standards (BIS) in 1987. The official mark that the Bureau of Indian Standards provides for manufacturers of various goods is the ISI Mark. It is used to indicate compliance with Indian standards (IS) set by the Bureau of Indian Standards (BIS) and has been used as a conformity marking for industrial products. Manufacturers received permission from BIS to use the ISI Mark on items that comply with relevant Indian requirements through the product certification program.
Only manufacturers (domestic or foreign) who produce the finished product will be awarded ISI Certification. This will not be given to any product importers, traders, dealers, or distributors.
The following documentation is required to get an ISI certification:
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There are two approaches for Indian manufacturers to become certified with the ISI Mark:
Regular Procedure
With the possible exception of cases deemed "All India first," which might take up to 180 days, the licensing procedure is expected to be finished in 120 days. This timeline starts on the day the application is received, assuming that at different points in time the documentation, unit assessment, and product conformance are all deemed acceptable.
Step 1: Manufacturing Unit Customization in Compliance with Applicable Indian Standards
Step 2: Submission of the Application Form
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Simplified Procedure
This is a much faster process than the standard procedure. After a factory inspection is deemed satisfactory and the initial evaluation establishes that the sample complies with the applicable Indian Standard(s), the license application process is expected to be finished in 30 days.
Step 1: Adapting the Manufacturing Unit to Comply with the Relevant Indian Standard
Step 2: Sample Testing
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The process of obtaining ISI Mark Certification for Foreign Manufacturers typically includes the following steps:
Step 1: Application
Step 2: Query Raised (If Any)
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Brand Liaison provides helpful support for achieving ISI Mark Certification. Among our offerings are:
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